Abstract
Solar photovoltaic (PV) modules consist of solar cells connected in series to provide the required output power. The solar PV system is experiencing major challenges, which are mainly due to the partial shadows on the photovoltaic modules leading to mismatching power loss and hot spot problems. Hotspots have become a major cause of PV module failure. The Cell Partition Technique (CPT) is proposed to reduce hotspots and minimize mismatch losses caused by partial shadings. Specifically, each solar PV cell (Full cell) in a solar PV module is divided or partitioned into two half cells (known as Half-Cut Cells or HC) and three equal cells (known as Tri-Cut Cells or TC) in accordance with the proposed technique. The HC and TC types of cells are connected in a strings of series-parallel connection, and bypass diode is placed in middle of the solar PV module to ensure proper operation. The primary aim of this research is to model, evaluate, and investigate the performance of solar PV arrays using new PV modules are developed based on Cell Partition Technique (PVM-CPT), such as half-cut cell modules (HCM), and tri-cut cell modules (TCM) and compared with full-sized cell modules (FCM). These PVM-CPT are connected in Series–Parallel (SP), Total-Cross-Tied (TCT), and proposed static shade dispersion based TCT reconfiguration (SD-TCTR) for the array sizes of 3x4, 4x3 and 4x4, respectively. The purpose is to select the most appropriate solar PV array configurations in terms of the highest global maximum power and thus the lowest mismatch power losses under short and narrow, short and wide, long and narrow, long and wide type of cell level partial shadings. The Matlab/Simulink software is used to simulate and analyze all of the shading cases. The results show that, when compared to conventional module configurations under different shading conditions, the proposed static SD-TCTR arrangement with TC modules (SDTCTR-TCM) exhibits the lowest mismatch power losses and the greatest improvement in array power.
Highlights
Solar PV power generation is universally available, virtually endless, pollutionfree, and simple to utilize[1]
The simulation results of a single standard full cell module (FCM) and PVM-Cell Partition Technique (CPT) i.e., half-cut cell modules (HCM), and tri-cut cell modules (TCM) under different cell level shadings are presented in Tables 9, 10, and 11 respectively
Prop_FCM represents the proposed static shade dispersion based TCT reconfiguration (SD-TCTR) array with FCM, Prop_HCM represents the proposed static SD-TCTR array with HCM, Prop_TCM represents the proposed static SD-TCTR array with TCM
Summary
Solar PV power generation is universally available, virtually endless, pollutionfree, and simple to utilize[1]. The hotspot effect happens when the maximum current generation capacity of one or more cells in a series-connected solar cell string is dropped to values below the module's operational current. In this situation, reverse bias across cells with lesser current induces heat dissipation. To improve efficiency and reduce overall power losses, and a hotspot effect a solar cell is split into two halves or three equal parts using a laser cutting known as the Cell Partition Technique (CPT), is introduced in this work. CPT uses conventional solar cells that have been cut in half and one-third to generate electricity (i.e., full cell is divided into two and three equal parts). Instead of having a single solar PV module with 36 or 60 or 72 full cells, the module could be divided into 72 or 120 or 144 half-sized cells and 108 or 180 or 216 tri-sized cells while maintaining the same design and dimensions as traditional modules, according to the manufacturer
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
